Unpublished conference/Abstract (Scientific congresses and symposiums)
Wear behavior of laser clad 316L+WC composite coatings
Maurizi-Enrici, Tommaso; Dedry, Olivier; Mario, Daniele et al.
2021Thermec 2020 - 11th International Conference on Processing & Manufacturing of Advanced Materials
Peer reviewed
 

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Keywords :
Additive Manufacturing; Laser Cladding; Wear; Hard Materials; Metal matrix composites
Abstract :
[en] Austenitic stainless steels (e.g. SS316L) are widely used due to their corrosion resistance and good toughness. However, their applications are still limited by their relatively poor tribological properties. A composite coating in zones subjected to contact loading appears as an interesting solution, combining the matrix material with hard reinforcements. Among the possible reinforcements, WC is a popular candidate due to its hardness and its theoretical high melting temperature of 2600°C. Laser cladding (LC) is particularly well-suited for the manufacturing of composite coatings, allowing for a large variability in raw materials. In LC, a stream of a powder, or a mixture of different powders, is fed into a focused laser beam while being scanned across a substrate, thus leaving behind a coating or object. This work considers a metal matrix composite composed by 316L stainless steel and reinforcements of tungsten carbides (WC) particles (10 and 20 in vol.%). During the fabrication of the coatings, the original WC particles dissolve partially in the melted SS316L matrix. The final microstructures are composed by the surviving parent WC reinforcements surrounded by a matrix that is itself reinforced as a result of the reactions with the original WC particles. The wear behaviour of those new microstructures are investigated by means of pin-on-disc tribometer tests and compared with SS316L reference samples also produced by LC. Profilometer measurements and SEM observations are carried out post-mortem on the worn samples to help elucidate the complex sequence of wear mechanisms at play during the tribometer tests.
Disciplines :
Materials science & engineering
Author, co-author :
Maurizi-Enrici, Tommaso  ;  Université de Liège - ULiège > A&M
Dedry, Olivier  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Metallic materials for additive manufacturing
Mario, Daniele
Nordera, Mattia
Castagne, Sylvie;  KULeuven > Manufacturing processes and systems
Tchuindjang, Jérôme Tchoufack  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Metallic materials for additive manufacturing
Mertens, Anne  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Metallic materials for additive manufacturing
Language :
English
Title :
Wear behavior of laser clad 316L+WC composite coatings
Publication date :
June 2021
Event name :
Thermec 2020 - 11th International Conference on Processing & Manufacturing of Advanced Materials
Event organizer :
TU Graz
Event place :
Vienne (modifié en mode virtuel - covid 19), Austria
Event date :
du 1 au 5 juin 2021
By request :
Yes
Audience :
International
Peer reviewed :
Peer reviewed
Available on ORBi :
since 06 July 2021

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